Attachment for automobile-engines.



O. F. GRIFFIN.

ATTAGHMENT FOR AUTOMDBILE ENGINES.

{APPLICATION FILED APB-.29, 1908.

Patented July 26, 1910.

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l N VE N T019 15 62727371 A TTORNE YS WITNESSES 0. F. GRIFFIN. ATTACHMENT FOR AUTOMOBILE ENGINES.

APPLICATION FILED 12.29, 1903. 965,626, Patented Ju1y'26,1910.

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WITNESSES INVENTOR 011172]? frzzfz'n A 7TORNEYS 5". f Z/(HWJ/ M1050- 'ORRIN F. GRIFFIN, .OF NEW YORK, N. Y.

ATTACHMENT FOR AUTOMOBILE-ENGINES.

Specification of Letters Patent. Patented J 111 26, 1910.

Application filed April 29,1908. Serial No. 429,871.

To all whom 'it may concern:

Be it known that I, ORRIN F. GRIFFIN,'I1 citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York, have invented a new and Improved Attachment for Automobile- Engines, of which the following is a full, clear, and exact description.

The invention relates to multi-cylinder engines in which one cylinder of the multication, in which simi ar charactersof refer? vation of the lift rod guide showing a part broken away; Fig. at is an enlarged longitudinal section of my invention showing the same mounted on the pet cock of an engine -cylinder; Fig. 5 is a longitudinal section slowing an attachment of modified form; and Fig. (i is an enlarged end view of a dctail of the attachment of modified forpi.

Beforeprocecding to a more detailed explanation of my invention, it. should be clearly understood that while the same is particularly useful in connection with the engines of automobiles and the like, it can also be advaiitageouslyemployed with multicylinder engines other than those of automobiles.

1: wish to emphasize the fact that. the in vcntion does not reside in the details of construction asshown in the forms of the device illustrated for example, in the accompanyingdrawings, but that. these details of constrnction can be varied to suit individual preference or special conditions.

. The invention resides primarily, in the provision of means for rendering the valves inoperative.

Referring more particularly to the draw: 0 ings, I have shown, in Fig. l, a two-cylinder internal combustion engine of the usual form, having cylinders 10, each of whichis provided with a valve chest 11 in whichare located an inlet valve and an outlet valve. These have valve stems or rods 12- provided with springs 13 which hold the valves normally closed. The valves are mechanically operated by means of lift rods 14 actuated by a cam shaft (not shown). The lift rods 14 move in guides 15 rigidly mounted upon the engine base. 16. The lift rods 14: have separate endsections 17 provided with heads 18- adapted to engage at the lower ends of the valve rods and to operate the same as the lift rods are actuated. The lift rod guides have the upper portions 19 which guide the sections 17, 1novable with respect to the bodies of the guides, and pivoted thereon by means of cars and pivot screws or rivets 21. A locking lever 22 is pivoted upon each of the rod guides and is ada )ted to enga e a bifurcated stop 23 carried y the movable guide section, to lock the parts together. lVhen it. is desired 8-5 to render the valves of the cylinder inoperative it is merely necessary to displace the levers 22 from engagement with the stops 23 and to swing the guide parts I!) with the separate rod section 17 to one side, as is shown in Fig. 1. lhe valves of the cylinder will then remain closed owing to the action of the springs 13. The lift rod guide sections have, respectively, ribs 20 and grooves 20'? which are adapted to engage to assist in holding the parts in operative position.

Each of the cylinders hasa relief pet cock 24 mounted at the top thereof and serving to relieve the compression in the cyl- 0 inder when the pet cock is open. It has the upper end 25 threaded to receive a correspondingly threaded neck 27 of an elongated member 28. The latter has a longitudinal passage 2!) thcretlu'ough which communicatcs at. one end with a chamber 30 having a sleeve 31 therein and a spider 32. The chamber is closed by a screw head 33 and communicates with the -outer air through a passage 34 of the latter. A ball 35 is arranged in the sleeve 31 and is adapted to close the passage 34 when in positiou I from the head 33 is a second chamber 38 in which is arranged a sleeve 39. The chamber 38 is closed by a head 40 having an elongated discharge outlet 41. A ball 42 is arranged within the sleeve 39 and is adapted to close the passage 29 when the ball restsatthe end thereof. Wheulthe ball 42 is positioned against the head-40, air

,can escape from the passage 29 through the sleeve 39 to the assage 43, of the head 40, bypway of latera ly disposed and. angular-1y positionedpassages 44 and 45 of the .sleeve and thehead respectively, these having registering edge grooves 46 with which the passages 44 and 45 communicate. -The discharge outlet41 may be of any suitable ;=.drawings, be formed .to receive a coupling.

form .to receive an end of a tube leading to the tires,the fuel tank or other receptacle, and .may, as shown, for example in the 47 to connect with a flexible tube 48.

When the pet cock'24 is open, communication is effected between the interior of the cylinder and the passages 36 and 29. At the .i downward stroke of the piston, air is drawn into the cylinder through the passages 34,29 and 36, 'the ball 35 assuming a position against the spider 32, while the ball 42 is positioned at the end of the passage 29 to close the same. At the up-stroke of the piston, air is expelled from the cylinder through the passages 36' and 29 and the outlet of the member 28, the ball 35 assuming a position at the end of the passage 34 to close the same,

while the ball 42 is positioned against the head 40, leaving the passages 44 and 45 unobstructed. In this way, anefiicicnt singleacting pump 'is formed by the cylinder.

In the modified form of my invention shown in Fig. 5, the head 33 has an enlarged passage 49 therethrough, into which extends a slidable valve member 50 having a head 51 which is adapted to close the passage. The valve member 50 has guide extensions and a stem 52 extending Q the closed.

head and carrying a spring 53 which engages the end of the head and a cross pin 54 of the shank '52 to hold the valve normally valve member 55 which has a head 56 The passage 29 adjacent to thei chamber 38 is extended to'receive a sliding The head 40, at the inner end, has lateral passages 57 which permit the unobstructed flow of air when the head 56 is positioned against the end of the head 40.

The heads 33 and 40 are preferably burred so that they can be easily screwed into place and removed'm'anually,

-The pet cocks may be of any preferred or common form, provided they have the upper portions threaded, suitably to receive the members 28.v

The device may be fashioned from any suitable material such as cast metal 'or the like.

Having thus described my invention. I claim as new and desire to secure by Letters Patent 1. In an engine,..the combination with the cylinder, its valves, and valve-stems, of lift rods for operating the valves, each rod being formed of disconnected sections, and means whereby one. section of each rod may be moved out of alinement with the other section and the valve stem to render the valve inoperative.

2. In an engine, 'the combination with the cylinder, its valves, andvalvestems, of

guides formed of sections movable relatively one to the other, and lift rods in vable in the guides and formed of disconnectedsections, one in each section of a guide.

3. -In a multi-cylinder engine, the combination with 'the cylinders and their valves and valve stems, of guides in alinement with the valve stems and each formed of two sections hinged together, means forlockingthe sections of the guides together, and sliding lift rods for the valve stems, each rod being formed of ,two sections, one in each of the sections of the guides. 4. In a multi-cylinder engine,.the combination with the cylinders, and their valves .and valve stems, of guides below the valve stems and each formed of two sections hinged together, a bifurcated stop on the hinged section of each guide, a lever pivoted to the fixed section of each guide and adapted to engage the said stop, and sliding lift rods-in the guides for operating the valve stems, each lift rod being formed of twosections, one in each section 'of the guide, the upper section being provided with a head. In testimony whereof I have'signed my name to this specification ,in the presence of g two subscribing witnesses. ORR-IN F. GRIFFIN.

ll'itnesses CHARLES M. Fmnsorlamxx,

JOHN K. BRaonvooeL. 

